While the term can refer to anyone who drives for a living, it generally implies a driver of an elegant passenger vehicle, such as a horse-drawn carriage, a luxury sedan, a coach, or especially a limousine; those who operate buses or non-passenger vehicles are generally referred to as drivers. Chauffeured cars are the clear choice for people who want their transportation to be sophisticated and comfortable. You can always rely on our cars to pick you up on time and take you to your destination as scheduled. Chauffeurs are highly trained drivers, hired only to drive VIP customers in luxury cars.
A chauffeur service requires a series of protocols and responsibilities that the driver must follow to receive elite customers. A chauffeured car is usually geared toward passengers rather than the driver (think Bentley instead of Porsche). Often, there are features that are meant to benefit passengers, such as the glass privacy divider or the champagne cooler, instead of the ones in front. In other words, a chauffeur doesn't just drive a car.
A chauffeur is a trained driver.